The Royals announced this evening that outfielder Lorenzo Cain has been placed on the 15-day disabled list with a left groin strain. The club has called up left-hander Justin Marks from Triple-A Omaha to replace him on the active roster, which means that Kansas City is now carrying 13 pitchers.

Cain suffered the injury during last night’s win over the Astros. Andy McCullough of the Kansas City Starreports that he was diagnosed with a Grade 1 strain, which is the least severe, and that he hopes to return when he’s eligible in two weeks.

Injuries have been an ongoing storyline with Cain during his career. Acquired from the Brewers in the Zack Greinke deal, the 28-year-old plays excellent defense in center field and has shown some ability on offense, but he has has yet to play more than 115 games in a season. The speedy Jarrod Dyson is making the start in center field tonight and should see increased playing time during his absence.